2,6-di-O-benzoyl-3-O-benzyl-4-O-levulinyl-1-O-(N-phenyltrifluoroacetimidoyl)-α-D-glucopyranoside | 1352561-72-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 糖脂
• 英文名称: 2,6-di-O-benzoyl-3-O-benzyl-4-O-levulinyl-1-O-(N-phenyltrifluoroacetimidoyl)-α-D-glucopyranoside
• 英文别名: [(2R,3R,4S,5R,6R)-5-benzoyloxy-3-(4-oxopentanoyloxy)-4-phenylmethoxy-6-[N-phenyl-C-(trifluoromethyl)carbonimidoyl]oxyoxan-2-yl]methyl benzoate
• CAS: 1352561-72-8
• 化学式: C₄₀H₃₆F₃NO₁₀
• 分子量: 747.722
• InChiKey: HBNVCRDUAUTJTH-VAHAVOFUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7
• 重原子数：
  54
• 可旋转键数：
  18
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.28
• 拓扑面积：
  136
• 氢给体数：
  0
• 氢受体数：
  14

反应信息

• 作为产物：
  描述：

  4-methylphenyl 2-O-benzoyl-3-O-benzyl-1-thio-β -D-glucopyranoside 在 哌啶 、 4-二甲氨基吡啶 、 N-碘代丁二酰亚胺 、 二正丁基氧化锡 、 caesium carbonate 、 N,N'-二异丙基碳二亚胺 作用下， 以 二氯甲烷 、 丙酮 、 甲苯 为溶剂， 反应 6.0h， 生成 2,6-di-O-benzoyl-3-O-benzyl-4-O-levulinyl-1-O-(N-phenyltrifluoroacetimidoyl)-β-D-glucopyranoside 、 2,6-di-O-benzoyl-3-O-benzyl-4-O-levulinyl-1-O-(N-phenyltrifluoroacetimidoyl)-α-D-glucopyranoside
  参考文献：
  名称：

  Exploring and Exploiting the Reactivity of Glucuronic Acid Donors

  摘要：

  The relative reactivity of glucuronic acid esters was established in a series of competition experiments, in which two thioglucoside and/or thioglucuronic acid ester donors competed for a limited amount of activator (NIS-TfOH). Although glucuronic add esters are often considered to be of very low reactivity, the series of competition reactions revealed that the reactivity of the glucuronic acid esters studied is sufficient to provide productive glycosylation reactions. The latter is illustrated in the synthesis of two Streptococcus pneumoniae trisaccharides, in which the applicability of the two similarly protected frame-shifted thiociisaccharide donors, Glc-GlcA and GlcA-Glc, were compared. The Glc-GlcA disaccharide, featuring the glucuronic acid donor moiety, proved to be the most productive in the assembly of a protected S. pneumoniae trisaccharide.

  DOI：

  10.1021/jo201586r

文献信息

• Exploring and Exploiting the Reactivity of Glucuronic Acid Donors
  作者：Ana-Rae de Jong、Bas Hagen、Vincent van der Ark、Herman S. Overkleeft、Jeroen D. C. Codée、Gijsbert A. Van der Marel

  DOI：10.1021/jo201586r

  日期：2012.1.6

  The relative reactivity of glucuronic acid esters was established in a series of competition experiments, in which two thioglucoside and/or thioglucuronic acid ester donors competed for a limited amount of activator (NIS-TfOH). Although glucuronic add esters are often considered to be of very low reactivity, the series of competition reactions revealed that the reactivity of the glucuronic acid esters studied is sufficient to provide productive glycosylation reactions. The latter is illustrated in the synthesis of two Streptococcus pneumoniae trisaccharides, in which the applicability of the two similarly protected frame-shifted thiociisaccharide donors, Glc-GlcA and GlcA-Glc, were compared. The Glc-GlcA disaccharide, featuring the glucuronic acid donor moiety, proved to be the most productive in the assembly of a protected S. pneumoniae trisaccharide.